AEG AX91-604GY — Could not connect

The app did not establish a connection to the purifier during the initial setup. This usually indicates a communication issue between the phone, the purifier and/or the home network.

• App displays 'Could not connect' during onboarding.
• Onboarding does not progress past device discovery or setup step.
• Purifier remains unlisted in the app.

• Purifier not powered or not in setup mode.
• Phone out of range or Bluetooth/Wi‑Fi disabled.
• Phone connected to 5 GHz network (device requires 2.4 GHz).
• Router or network restrictions (VPN, firewall, guest network).
• App permissions or outdated app/firmware.

1. 1
   Check the purifier for any network or status LEDs described in the manual to confirm it's in setup mode.
2. 2
   Verify the phone has location and network permissions for the AEG app (if prompted).
3. 3
   Temporarily disable VPNs, ad blockers or firewall rules on the phone/router.
4. 4
   Ensure the router allows new device connections and is not using MAC filtering.
5. 5
   If comfortable, consult the purifier manual for a network reset procedure; follow manual instructions exactly.

• Purifier powered on and near the phone.
• Phone connected to home 2.4 GHz Wi‑Fi (not 5 GHz or mobile hotspot).
• Correct Wi‑Fi password entered.
• AEG app updated to the latest version.
• Phone restarted and app reinstalled if needed.

• Attempting setup on a 5 GHz Wi‑Fi band instead of 2.4 GHz.
• Using a mobile data connection or hotspot during onboarding.
• Keeping the phone far from the purifier during pairing.
• Not granting required app permissions (location/Wi‑Fi).

• Do not open or attempt internal repairs on the purifier.
• Do not share network credentials publicly.
• Avoid performing hardware resets unless instructed by the manual or support.

If the purifier shows other fault indicators (error lights, unusual noise, smoke or smell), stop setup and contact AEG support or a qualified technician.

• You have followed all checks and the app still cannot connect.
• The purifier displays fault indicators or behaves abnormally during setup.
• You need guided factory/network reset steps from the manufacturer.

If contacting support, have your model (AX91-604GY), purchase details and a description of steps tried ready.

• Keep the app and purifier firmware updated.
• Use a stable 2.4 GHz Wi‑Fi network for smart features.
• Place the purifier and router to minimise interference during setup.